Speed indicating and regulating apparatus.



I No. 726,125. PATENTED APR. 21, 1903.

A. WETZEL. SPEED INDICATING AND REGULATIN G APPARATUS.

APPLICATION FILED MAR. 6, 1902. N0 MODEL. 2 SHEETS-SHBBT 1.

Fl G1- PATENTED APR. 21,1903.

-A. WETZEL. V SPEED INDIGATING AND REGULATING APPARATUS.

APPLICATION FILED MAR. 6. 1902.

2 SHEETS-SHEET 2 N0 MODEL.

& m M

UNITED S ATES- P TENT OFFIC -ALBERT' WETZEL, OF1S'TUTTGAR'TQ GERMANY.

" SPEED INDICATING AND 'RVEG'ULAITINIG APPARATUS;

l SPECIFICATION forming part of Letters Patent No. 72e, 2 5; a t d April21, 1903 Application filed Mai-oh 6 ,1902. Serial No. 96,9,42.KKoioodel.) Q I To aZ Z wit/0m, iii-may concerm:

Be it known that I, ALBERT WETZEL, a subject of the King of Wiirtemberg,residing at 22 Ul1landstrasse, Stuttgart; in the Kingdom My inventionrelates to speed indicating IO rlages, tram-cars, ships-or forineasnringthe' pressure of air and many-other purposes.

-5 The principle nnderlyin'g' the construction-of 1' this apparatns isasfollows: A pr'opelleror' like screw set in rotation .by. the'shaftof-the engineer-vehicle exerts upon the surroundgo ing liquid,.air, orother fluid apressure V ing the displacement of t ifi orew in" ree'tio'nofits; aXis,- 7l, l

gunonntof whichflv'ari' of the driving-shaftof \Viirtemberg and Empireof Germany, have invented new and useful Improvements in SpeedIndicating and Regulating'Apbaratns, of which the following is aspeeificationf or regulating apparatus. which maybe em-. ploy'ed eitherfor stationary orportable engiues-snch as hoisting -engihes, locomo-ttiv es-.-or'f0r -\"ehic1es--suoh' as motor 7 car-- direction. The shafth. may, also be firmly connected with the 'left wall of the casing a'and supported in the left end of the shaft (1. Moreover; the screwmayberigidly connected with the axis'hpso as to be displaced conjointlywith'the sgune; of the scre'wthej leve I bearing withite fr 'gainst thenaveof 5 f0r|'n' a. bell-crank," receivefin' opposition to the spring m:1 'm 'ovementl which is transmitted to: the toothed s'ejQmen't-o,by'menns. of" the conneeting' -rodn. This segment gearswith the toothedwheel 10,; mol'mted'loose. upon the driving-shaftd and having-firmly{connected itthe indexf, an thefgraduaitedea'leq The greiter the speed;'ofthe. driyi ngzsh' d n nd of the" propeller- 'serewg'the gr at theforce opposing the deter-minediem-piri'eal ly. late thefs'lidin gfriction pr hjxth'e lever 1c in'jsteed'of; h the' shaft so that it will-.be d isplmd in asten-am 1 In hez nrrangel'nent v representedfin Fig. 8di plac en f t .pw ell'errscr ifl nov'em'e'nt of .th'e leven k: servestrangmmi g; movement to the 'lsolffol a'cting'npon the regulat-,nbiztihg gem (throttle-valve w) of a wi -=Upq e redec n w z hnd:hell-wa kk whic the s'nsitiveness row onlhe driving-shaft turnlngin acertain In the displacement pivoted .at i land 6 the screw a'nd "also heletter l -firmly conl nected .with th'e leirerkbyjflie pivot, so'as toted totur'n in front ofiq;

Qthjsispeed'oht-thefgrndneted l I d nlfthef'dplac'einentlofthe-propeller;=- U is-h, the latter-maybe f e e noy neyotthe iq idompen t s r he mew-and lever mech- A f" n5,Thejfloatm'ey'alsohefixed A imanyother suitable;

